CAJ | 학술논문

结合化学沉淀法和水热法成功地制备出了一种微米绒球状羟基磷灰石（HAP ）吸附材料，并用XRD、FT－IR和SEM对其晶体结构、化学结构和微观形貌进行了表征。研究了微米绒球状HAP对Pb2＋的吸附性能，并探讨了吸附时间、初始pH值、吸附温度和初始Pb2＋浓度等因素对吸附效果的影响。结果表明，当吸附材料用量为1．0 g／L时，微米绒球状HAP对含Pb2＋质量浓度为200 mg／L的模拟废水的吸附优化条件为反应时间l h、初始pH值2．5、吸附温度303 K ，此时吸附率高达93．44％。微米绒球状HAP对Pb2＋的吸附过程符合Langmuir吸附等温模型，饱和吸附量可达到248．76 mg／g ，表明该微米绒球状HAP具有较好的吸附性能。
결합화학침정법화수열법성공지제비출료일충미미융구상간기린회석（HAP ）흡부재료，병용XRD、FT－IR화SEM대기정체결구、화학결구화미관형모진행료표정。연구료미미융구상HAP대Pb2＋적흡부성능，병탐토료흡부시간、초시pH치、흡부온도화초시Pb2＋농도등인소대흡부효과적영향。결과표명，당흡부재료용량위1．0 g／L시，미미융구상HAP대함Pb2＋질량농도위200 mg／L적모의폐수적흡부우화조건위반응시간l h、초시pH치2．5、흡부온도303 K ，차시흡부솔고체93．44％。미미융구상HAP대Pb2＋적흡부과정부합Langmuir흡부등온모형，포화흡부량가체도248．76 mg／g ，표명해미미융구상HAP구유교호적흡부성능。
A kind of micro-pompon-like hydroxyapatite (HAP) adsorbing material has been synthesized successfully via combination of chemical precipitation and hydrothermal method and the crystal structure ,chemical structure and micro -to-pography of the as-prepared sample are characterized using XRD ,FT-IR and SEM techniques .The adsorption properties of the micro-pompon-like HAP on Pb2+ are studied and the effects of adsorption time ,initial pH value ,adsorption tem-perature and initial Pb2+ concentration on adsorption of Pb2+ are also investigated .Results show that the maximum removal rate is as high as 93 .44% under the optimum conditions :the adsorption time of 1 h ,initial pH value of 2 .5 ,adsorption temperature of 303 K ,initial Pb2+ concentration of 200 mg/L ,adsorbing material dosage of 1 .0 g/L .The adsorption pro-cess of the micro-pompon-like HAP on Pb2+ is consistent with the Langmuir isothermal adsorption model and the satura-tion adsorption capacity can reach 248 .76 mg/g ,revealing that this micro-pompon-like HAP has good adsorption perfor-mances .